Teat-cup for milking-machines.



l.. DINESEN.`

TEM CUP FOR MlLKING MACHINES.

APPLICATION FILED OCT. I6. 1915.

Rzteae Oct. P11916.

LURTS DNESEN, 0Fv MXNNEAPOLIS, MNNESOTA, ASSIGNOH TIFO BERFECTIGN 1lNU- FACTRING COMPANY, OF MINNEAPOLIS', MNNESOTA, A QOFJEGRATIN 0F MNNE- SOTA.

TEAR-CU? FOR MXLIING-MACHNES.

Application filed October 16,

.To all wlw/1n t may concern.'

Be it knownthat l, LAUniTs DiNnsiiN, a citizen oit' the United States, residing` at Minneapolis, in the county of Hennepin and ,t State oi' Minnesota, have invented certain new and useful lmprovements in rfeat-Cups for l/lilliing-Ma'chines3 and l do hereby declare the following to be a full, clear, and exact description of the invention, such will enable others skilled in the art to which it appertainskto make and use the saine.

My invention has for its object to provide an extremely simple and highly etiicient teat-l cup for milking machines; and, to this end, it consists of the novel devices and combinations of devices hereinafter described and contracted with its edge rolled to formed an internal annular clamping bead 3. rlhe junction of the body of the casing 1 with its head 2 affords an annular clamping shoulder 1. 'In the body of the casing 1, is a spiral cor rugation 5, which extends from the head 2 into the contracted lower end portion of said casing andis formedby creasing the body of the casing. The purpose of this spiral cor- -rugation 5 is fully set forth in iny U. S.

Letters Patent 1,072,584 of date September 9, 1913, entitled milking apparatus. A collar 6 is screwed onto the head 2 and has integrally formed therewith an inwardly projecting clamping flange 7 Within the casing;A 1 is a collapsible casing. 8, preferably formed from a rubber tube of the saine diameter throughout its entire length. The casings 1 and' 8 lare axially alined, one with the other` and the inner casing 8 is of a diameter considerably less than that of the outer casing 1 to afford between the two' casings an annular air chainber 9.V The upper end portion of thelcol- Specification of Letters Patent.

Patented @et 1?, 1911i.,

i915. semina. 56,215.

lapsible casing 8 is expanded into the 'head 2 by an expander 10, comprising a. pair of lat annular Arings 11 telescopically con-A nected. The inner of these rings 11 has integrally formed therewith ah inwardly and downwardly projecting annular clamping flange 12, which overlies the clamping shoulder The collapsible casing 8 is clamped between the shoulder 3 and flange 12 to atiord an air-tight jointbetweenkthe casings 1 and S, at their upper ends.` The outer rino" 11 has integrally formed therewith.anu wardly and inwardly projecting annular iiange 13, which underlies the Jclamping hflange 7 of the collar 6. The collapsible casing S is also clamped between the flanges 'l and 12 to afford a second air-tight joint be` tween the casings l and 8, at their upper ends,

A diaphragm 14e, preferably et rubber, seated on the flange *E of the collar @,ivitli its outer edgeportion clamped between the flange and the underlying portion of the collapsible easing S; This diaphragm lil is provided with a central aperture lfthrough which one of the cows teats projects into the collapsible casing S of the tent-cup, Obviously, the screwing action et' the collar 6 on the head 2 simultaneously clamps the col lapsible'casing S between the shoulder 2 and flange 12 and between the two flanges i" and 13. The lower end portion of the collapsible casing 8 is expanded and, clamped onto the outer casing 1 by an inverted bell-shaped head 16, which furnis a part oi' a depending nipple 17, having communication with the interior oi' the teat-cup through said head. On the outer cylindrical surface of the head 16, is an annular bead 18 andan annular groove 19 axially spaced, the latter below the former. The bead 18 is arranged to clamp the collapsible casing 8 on thelinternal surface of the contracted end portion of the rigid casing 1 and the bead 3 is arranged to clamp said easing in the annular groove `19, thereby making tivo air-tight joints at the lower ends of the casings 1 and 8,

The above described teat-cup is especially Vadapted for use in connection with my pulsating device for milking.apparatus. disclosed and claimed in Patent 1,117.169, issued of date November 17, 19t/1. Iln this construction, when the apparatus is in on- 'through a port 22.'

. leads from the milk pail. The outer end of the branch suction tube 20, shown in the drawing, is telesoped onto the nipple 17 and which nipple is provided with a plurality of longitudinally spaced corrugations into which the tube 2() is drawn to increase the holding action between the tube and nipple.

To `the outer face ot' the rigid casing l, is

rigidly secured a depending air tube 2l, the.

upper end oit' which has communication with the upper extremity of the air chamber 9, This air tube 2l also has communication with the lower extremity of the air chamber 9, through a port S33. The purpose of the port 23 is to prevent water, used in washing out the apparatus, from pocketing in the air chamber 9, and does not, in any way, affect the action of the apparatus. As a convenient means ot forming the ports 22 and Q3 and rigidly securing the air tube 21 to the casing l, it will be noted that pairs of coincident holes are formed in the casing l and air tube 21. The holes in the air tubes 21 are punched from the inside out, leaving burs, which are fitted into the holes of the casing 1 and secured in position by solder.

The air tube 21 is connected to the above identified pulsating apparatus, or other suitable means for producing pulsations, by a llexible tube, not shown, attached to the lower open end ot said air tube. As previously stated, there will be a constant suction or partial vacuum in the teat chamber ot' the collapsible casing 8, so that there is a constant tendency to draw the milk from the teat into the milk pail. The pulsations produced in the air chamber 9 through the air tube 2l, by the pulsating device, cause the collapsible casing 8 to intermittently contract and compress the teat and then expand and release the squeezing pressure on the teat. Obviously, the constant pressure within the teat chamber will contract the collapsible casing 8 against the teat, when air pressure `is permitted within the air chamber 9, and, on the otherv hand, Whenever partial vacluun is produced within the said chamber l), the collapsible casing S will be expanded or drawn outward, thereby relievin;r the pressure on the teat.

liv reference to the drawing, it will be note-d that the diameter ot' the.` aperture l5, in the dia)ihragm.A is somewhat less than the diameter ol' the collapsible fasing S, thereby forming au air-light joint around the teat and also assisting in holding the teat cup in position.

lVhat I claim is:

l. A teat-cup including a rigid casing and a collapsible casing located, the latter in the former, with an air chamber therebetween, a diaphragm having its outer edge portion insertible between the collapsible casing and the rigid casing, and an expander in one end of the collapsible casing for clamping the collapsible casing and the diaphragm onto the rigid casing.

A tent-cup including a rigid casing and a collapsible casing located, the latter in the former, with an air chamber therebetween, said rigid casing having av contracted end portion with an annuiar bead, and a nipple having an annular groove. and an annular bead, said nipple being inserted in one end ot' the collapsible casing, with its bead clamping the collapsible casing on'the contracted end portion ot the rigid casing and the head of Ythe rigid casing clamping the collapsible casing in the groove oi the nipple.

A. teat-cup including a; rigid casing and a collapsible casing located, the latter in the former, with an air chamber therebetween, and an expander in one end ot the collapsible casing, said expander having inwardly projecting annular flanges, between which expande and the rigid casing' they collapsi ble casing is clamped.

il. A. teat-cup including a rigid casing and a collapsible casing located, theu latter in the former, with an air chamber therebetween, and an expander in one end ot the collapsible casing, said expander' comprising a. pair of telescopically connected rings, each having at its outer edge an annular flange, between. which flanges and the rigid casing the collapsible casing is clamped.

5. ,A teat-cup including a rigid casing and a collapsible casing located, the latter in the former. with an air chan'ibcr therebetween,

one end of said rigid casing being expanded to afi'ord an annular shoulder, a. collar on.

the expanded end olI the rigid casing and having an annular flange. and an expander in one end or' the collapsible casing, said ex pander having a pair ot' inwardiy projectingl flanges. between which .lianges and the shoulder ot the rigid casing and the ilange ot the -collar the collapsible casing is clamped.

(S. A trat-cup including a rigid casing and a collapsible. casing located, the latter in the lormer, with an air chamber therebetween,

one end ot' said rigid casing being expanded to al'l'ord an annular shoulder, a-collar on the expanded end ot the rigid casing and4 having an annular liange, and an expander flange and the shoulder of the rigid casingand the liange of the Collar the collapsible easing is clamped.

7. A tent-cup including a rigid casing and a eollapsihle easing located` ,the latter in the. former, with an air chamber therebetween, and an air tube secured to the rigid easing and having two ports leading, one to the upper extremity of the air chamber and the other according afdrain passage at the lower extremity thereof,

8. A teat-eup ineh1ding y a rigid casing and a collapsible easing` loe-ated, the latter in the' Vformer` with an air ehaniher therebetween, one end of said rigid easing` being expanded to a fl'ord an annular shoulder, a collar ,screwed onto the expanded end oi the rigid easing and haring an annular llange, ay diaphragm removably seated on the flange of the A colla-r, and an expander in one end of the collapsible casing, said expander comprising a pair of telescopically conneeted rings, each having at its outer edgewall annular ange, said collar adapted to be'sereived into a pol sition to clamp the collapsible casing be tween the shoulder of the rigid casing and one of the flanges of the expander and,'also, to clamp said collapsible casing and the diaphra-gm between the other shoulder of the expander and the iange of the collar.

, In testimony whereof I aliix my signature in presence of two witnesses.

LAURITS DINESEN.

Viitnesses:

CLARA DEMAREST, HARRY' D. KILGORE. 

